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Performance of recycled concrete made with precast

Performance of recycled concrete made with precast

Performance of recycled concrete made with precast ...

Performance of recycled concrete made with precast concrete rejects. Optimisation of mix proportions based on mechanical properties Antonio López-Uceda1*, Adela P.

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Performance of recycled concrete made with precast ...

Performance of recycled concrete made with precast concrete rejects. Optimisation of mix proportions based on mechanical properties Antonio López-Uceda1*, Adela P.

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Structural recycled aggregate concrete made with precast ...

Jul 01, 2016  The recycled aggregate from wastes of precast structural concrete are clean and of high quality. •. A complete characterization of recycled aggregate and

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(PDF) Seismic Performance of Precast Recycled Concrete ...

Shake-table tests on a six-story precast recycled aggregate concrete (RAC) space frame structure were investigated. The 1/4-scale precast RAC frame structure was

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Analysis of the performances of concrete components made ...

utilization of recycled aggregates coming from crushed concrete rubble in the production of precast blocks. In particular, the paper reports the results of the

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Performance of concrete made with aggregates recycled from ...

Performance of concrete made with aggregates recycled from precasting industry waste: influence of the crushing process December 2015 Materials and Structures 48(12):3965-3978

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Analysis of the performances of concrete components made ...

utilization of recycled aggregates coming from crushed concrete rubble in the production of precast blocks. In particular, the paper reports the results of the characterization of the aggregates and of the performance evaluation of concrete specimens in which different percentages of recycled aggregates are contained. The testing of the precast ...

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High-Performance Self-Compacting Concrete with Recycled ...

Jun 26, 2020  buildings Article High-Performance Self-Compacting Concrete with Recycled Aggregates from the Precast Industry: Durability Assessment Tiago Barroqueiro 1, Pedro R. da Silva 2 andJorge de Brito 3,* 1 Civil Engineering Master, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal; [email protected]

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Environmental performance and mechanical analysis of ...

The overall objective of this research project was to investigate the feasibility of incorporating 100% recycled aggregates, either waste precast concrete or waste asphalt planning, as replacements for virgin aggregates in structural concrete and to determine the mechanical and environmental performance of concrete containing these aggregates.

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Durability and shrinkage performance of concrete made with ...

Feb 22, 2021  Performance degradation of the repeated recycled aggregate concrete with 70% replacement of three-generation recycled coarse aggregate J. Wuhan Univ. Technol. Sci. Ed. , 31 ( 5 ) ( 2016 ) , pp. 989 - 995

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(PDF) Structural concretes made from recycled precast ...

[3] Bassan, M., Basilico, V. and Quattrone, M., 'Use of recycled aggregates for structural elements made with high-performance concrete', in 'R'07 Recovery of Materials and Energy 138 2n International RILEM Conference on Progress of Recycling in the Built Environment 2-4 December 2009, Sao Paulo, Brazil for Resource Efficiency', Proceedings of ...

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Performance of concrete made with aggregates recycled from ...

Nov 09, 2014  The aim of this paper is to evaluate the influence of the crushing process used to obtain recycled concrete aggregates on the performance of concrete made with those aggregates. Two crushing methods were considered: primary crushing, using a jaw crusher, and primary plus secondary crushing (PSC), using a jaw crusher followed by a hammer mill. Besides natural aggregates (NA),

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Sustainability and Precast Concrete

An example of downcycling would be the use of crushed precast concrete as aggregate in new concrete or as base materials for roads, sidewalks, or concrete slabs. ... opportunity to improve concrete performance with a recycled material that would otherwise have to be disposed of in ... Precast concrete is made in a factory, where a dedicated ...

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Mechanical Performance of Concrete Made with Recycled ...

Sep 15, 2020  This research aims at analysing the mechanical performance of concrete with recycled aggregates from concrete pavements. First, the characteristics of various natural and recycled aggregates used in the concrete were thoroughly analysed. The composition of the recycled aggregates was determined and several physical and chemical tests of the aggregates were performed.

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Researchers Increase Concrete's Durability and Recycled ...

Jul 28, 2010  Eco-concrete is compositionally tailored for high performance, low cost or sustainability; many industrial wastes can be recycled as source materials. All potential source materials can be processed at a much lower temperature as compared with portland cement, greatly reducing the generation of CO2 from ordinary portland cement production.

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Innovative Green Precast Concrete Uses Recycled Glass

Mar 10, 2021  Innovative Green Precast Concrete Uses Recycled Glass. The story behind Space Age Concrete and how it reduced the weight of precast concrete while producing a high-strength product. March 10, 2021 ...

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Utilization of Completely Recycled Fine Aggregate for ...

Jul 19, 2021  To reduce the cost of lightweight concrete (LWC) partition panels and to address recycling concrete waste, this work utilized completely recycled fine aggregate (CRFA) to replace the natural fine aggregate and ceramsite in the preparation of LWC and LWC partition panels. To this end, an autoclave-free curing process and an air-entraining agent were used to prepare the CRFA-LWC.

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BEHAVIOUR OF STRUCTURES MADE WITH RECYCLED

assumptions made when designing conventional reinforced concrete structures, but also at esti-mating some core parameters of the structural behaviour, such as elastic modulus, natural frequen-cies, cracking and ductility. To fulfil this purpose four full-scale recycled concrete structures, made with various recycled aggregate ratios, were tested.

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Frequently Asked Questions - PCI

Precast concrete is also friendly to downcycling, in which building materials are broken down, because it comes apart with a minimum amount of energy and retains its original qualities. An example of downcycling would be the use of crushed precast concrete as aggregate in new concrete or as base materials for roads, sidewalks, or concrete slabs.

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High-Performance Self-Compacting Concrete with Recycled ...

The main objective of this paper is to provide the industry with a simple and practical way of disposing and recovering recycled waste from precast reinforced concrete elements rejected during the quality control process, while minimizing the consumption of natural resources in the production of concrete and, consequently, significantly reducing the environmental impact of both (construction ...

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Sustainability and Precast Concrete

An example of downcycling would be the use of crushed precast concrete as aggregate in new concrete or as base materials for roads, sidewalks, or concrete slabs. ... opportunity to improve concrete performance with a recycled material that would otherwise have to be disposed of in ... Precast concrete is made in a factory, where a dedicated ...

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Seismic Performance of a Precast Recycled Concrete Frame ...

Jul 01, 2015  Shake-table tests on a six-story precast recycled aggregate concrete (RAC) space frame structure were investigated. The 1/4-scale precast RAC frame structure was constructed with precast beams, precast columns, and cast-in-place (CIP) slabs, which is different from the previous CIP RAC frames researched.

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Durability performance of high-performance concrete made ...

Abstract This study intends to analyse the effects of the incorporation of recycled aggregates (RA) and densified silica fume (SF) on the durability of high performance concrete (HPC). Considering that the mortar adhered to the RA strongly influences the behaviour of the concrete made with it, the source of these aggregates was restricted to precast mixes with target compressive strengths of ...

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Researchers Increase Concrete's Durability and Recycled ...

Jul 28, 2010  Eco-concrete is compositionally tailored for high performance, low cost or sustainability; many industrial wastes can be recycled as source materials. All potential source materials can be processed at a much lower temperature as compared with portland cement, greatly reducing the generation of CO2 from ordinary portland cement production.

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FIELD PERFORMANCE OF RECYCLED AND ALTERNATIVE

limited. This paper presents the in service performance of concrete made with recycled and alternative aggregate materials after being exposed to hyper-arid climatic conditions in Qatar for 5 years. Three building trials were constructed with structural concrete and concrete blocks. The

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Frequently Asked Questions - PCI

Precast concrete is also friendly to downcycling, in which building materials are broken down, because it comes apart with a minimum amount of energy and retains its original qualities. An example of downcycling would be the use of crushed precast concrete as aggregate in new concrete or as base materials for roads, sidewalks, or concrete slabs.

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Crumb Rubber Concrete - Precast

May 30, 2010  Another possible application for concrete cast with recycled rubber is in sidewalks. Kaloush has found that the crumb rubber produces an end product this is nearly non-slip in nature. “What I envision is a situation where all your utility pipes – water, sewer, electrical, phone and TV cables – would be run under the sidewalk rather than ...

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Utilization of Completely Recycled Fine Aggregate for ...

Jul 19, 2021  To reduce the cost of lightweight concrete (LWC) partition panels and to address recycling concrete waste, this work utilized completely recycled fine aggregate (CRFA) to replace the natural fine aggregate and ceramsite in the preparation of LWC and LWC partition panels. To this end, an autoclave-free curing process and an air-entraining agent were used to prepare the CRFA-LWC.

get price

Precast 101: How Precast Concrete Is Made - YouTube

Sep 18, 2019  Precast concrete is a construction product produced by casting concrete in a reusable mold or "form" which is then cured in a controlled environment. This al...

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Precast Concrete Atlantic Coast Precast

Precast concrete flexibility means molds designed for easy customization. Add or remove mold parts to produce different sized or shaped units [master mold concept]. This economical approach to customizing Precast panels or box structures results in well-matched and compatible units.

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Simulation study on dynamic response of precast frames ...

3-dimentional precast recycled aggregate concrete (RAC) finite element models were developed by means of the platform OpenSees to implement sophisticated nonlinear model subjected to seismic loads. Efforts were devoted to the dynamic responses (including dynamic characteristics, acceleration amplifications, displacements, story drifts) and capacity curve.

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Sustainable Building Materials High Concrete Group LLC

High Concrete’s 10”-thick precast exterior walls on the 110,000-square foot project delivers R-15 performance. They use three inches of continuous XPS insulation (“ci” as defined in ASHRAE Building Energy Code 90.1-2007) sandwiched between a 4” interior wythe and a 3” exterior wythe.

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PCI’s Sustainability FAQs

5. Does precast concrete contain recycled materials? Precast concrete performance improves when several common industrial byproducts are added. Fly ash, slag and silica fume that would otherwise go to landfills can be incorporated into concrete mixes as supplementary cementitious materials (SCMs).

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